To lose weight and feel more energetic, start by eating a balanced diet rich in vegetables, fruits, whole grains, and lean proteins while limiting sugary, fried, and processed foods. Control portion sizes and avoid skipping meals to maintain steady energy. Incorporate regular physical activity, such as walking, cycling, or light exercise, for at least 30 minutes on most days. Prioritise 7 to 8 hours of sleep each night, reduce caffeine intake, and stay well hydrated to improve energy levels.